SC121ULTRT Semtech, SC121ULTRT Datasheet - Page 11

• Manufacturer Part Number: SC121ULTRT
• Description: IC BOOST SYNC 1.2A MLPD-6
• Manufacturer: Semtech
• Type: Step-Up (Boost)r

Specifications of SC121ULTRT

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 3.3V, 1.8 ~ 5 V
• Current - Output: 1.2A
• Frequency - Switching: 1.2MHz
• Voltage - Input: 0.7 ~ 4.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 6-MLPD-UT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: SC121ULTRTTR

Typical Characteristics — V
5.05
4.95
4.85
5.05
4.95
4.85
4.9
4.8
4.9
4.8
100
5
5
90
80
70
60
50
40
30
20
10
0
0.1 0.2
0.5
0
R
R
R
1
1
1
Line Regulation — Low Load (V
= 931k Ω , R
= 931k Ω , R
= 931k Ω , R
50
V
IN
1
= 1.2V
100 150
0.5
Load Regulation (V
Effi ciency vs. I
1.5
2
2
2
V
1
= 294k Ω , L = 4.7 μ H, C
= 294k Ω , L = 4.7 μ H, C
= 294k Ω , L = 4.7 μ H, C
IN
= 1.2V
T
A
= –40°C
2
200 250
2
T
A
I
I
5
OUT
OUT
= 85°C
V
IN
2.5
(mA)
(mA)
OUT
(V)
10
300 350
V
(V
IN
V
20
IN
FB
= 4.2V
FB
FB
3
OUT
OUT
= 2.2V
OUT
= 22pF, T
= 22pF, T
= 22pF, I
V
IN
= 5.0V)
= 5.0V)
50
400 450
= 4.2V
V
= 5.0V
3.5
IN
= 2.2V
OUT
100 200
OUT
A
A
= 25
= 25
T
V
= 5.0V)
= 1mA
A
IN
V
= 25°C
4
IN
= 3.2V
ο
ο
500
= 3.2V
C
C
500
550
4.5
5.05
4.95
4.85
5.05
4.95
4.85
4.9
4.8
4.9
4.8
100
5
5
90
80
70
60
50
40
30
20
10
0
0.1 0.2
0.5
0
R
R
R
1
1
1
Line Regulation — High Load (V
T
A
= 931k Ω , R
T
= 931k Ω , R
= 931k Ω , R
A
50
= 25°C
= 25°C
1
100 150
0.5
Effi ciency vs. I
Load Regulation (V
1.5
2
2
2
1
= 294k Ω , L = 4.7 μ H, C
= 294k Ω , L = 4.7 μ H, C
= 294k Ω , L = 4.7 μ H, C
2
200 250
2
T
A
I
I
5
OUT
OUT
= –40°C
V
T
A
IN
2.5
= 85°C
T
(mA)
OUT
(mA)
A
(V)
T
10
A
= –40°C
300 350
= –40°C
(V
20
FB
FB
FB
3
OUT
OUT
= 22pF, V
= 22pF, I
= 22pF, V
= 5.0V)
= 5.0V)
50
400 450
T
A
3.5
= 85°C
OUT
T
100 200
OUT
A
IN
IN
= 85°C
= 3.6V
= 3.6V
= 5.0V)
SC121
= 85mA
T
4
A
= 25°C
500
500
550
4.5
11